55980220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{25679}}^1$

素因数の和:25797

約数の個数: 24

約数和(自身を含む): 118641600

約数和(自身を除く): 62661380

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 25679, 51358, 102716, 128395, 256790, 513580, 2799011, 5598022, 11196044, 13995055, 27990110, 55980220]

約数ペア:

[(1, 55980220), (2, 27990110), (4, 13995055), (5, 11196044), (10, 5598022), (20, 2799011), (109, 513580), (218, 256790), (436, 128395), (545, 102716), (1090, 51358), (2180, 25679)]